Damper-regulator.



P'ats'ntad Dec. 2. |902-,

G. F. PATTERSON.

DAMPER REGULATOR.

(Application led .Tuna 21, 1002.)

(No Model.)

UNITED STATES GEORGE F. BATTERSON, '0F BALTIMORE, MAR`.YL'Al\lD.v4

DAM Psa-ase n LAroa.

QSVECIFICATION forming part of Letters Patent No. 715,136, dated December 2, 1902. Application filed June 21,1902. Serial No. 112.611. (No model.)

`T aLZZ whont it' may concern:

`Be it known that I, GEORGE F. PATTERSON, a citizen of the United States, residing at Baltimore, in the State of Maryland, have inventcdcertain new and useful Improvements in Damper-Regulators, of which the following is a specification.

This invention relates to improvements in `automatic damper-regulators for furnaces of steam-boilers, sach as shown in Letters Patent No. 600,843, granted to me on the th day of March, i898.

The object of the invention is to provide an improved construction for operating the valve which controls the communication of water to and from the damper-motor. l

Theinveutiomis illustrated in the accompanying drawings, in which- Figure 1 is an elevation, in which a part is shown in section, of an apparatus embodying my invention. Fig. 2 is a vertical section ot the valve device, and Fig. Sis `a detailed view of the improved construction for operating the valve.

Similar reference-numerals designate like parts throughout the several views.

In the accompanying drawings, forming part of this specification, l designates a ver- Vtical cylinder containing a piston to which a rod 2 is attached, said rod projecting out of the topA of the cylinder. This is the ordinary damper-motor. A cord 3, attached to the piston-rod, leads to the arm of the damper. (Not shown.) Tightening the cord serves to open the damper. Slackening the cord closes the damper. A weight 4 on the piston-rod serves to press the latter down when the' valve is moved to allow the water in the cylinder l1 to discharge.

The valve-case 5 and the cylinder-l are connected by a pipe 6, through which water liows both forward and back. A pipe 7 leads from a source of water-pressure to the valvecase 5, and another pipe 8 leads from the valve-case to a drain or waste pipe.

Alever 91ike ascalc-beam, has at its end a hanging weight 10, and a sliding weight 11 is movable along the beam. This lever is raised and lowered by the variations of steam- 'pressnre in the boiler acting in a cylinder or motor 12, which is fitted with a diaphragm 13, and a pipe 14 communicates with this cylinder and leads from the steam-boiler.` (Not shown.) A stud or prop 15 restson the dia- 'phragm and has a knife-edge which engages for the motor-pipe 6, a screw connection 19 for the water-presso re pipe 7, and another, 20, for the waste-water pipe 8. It also has a central valve-bushing 21 with a cylindric passage 22 for the movement of the piston -valve 23. This valve governs a port 24, which communicates by way of a pipe 6 with the motorcylinder 1. The cylindric valve-passage 22 has a lower openxpassage 25 communicating with the connection 19, through which the Watenpressure enters on its flow to the motor l, and an upper open passage 26, communicating with the connection 20, 'from wifch the waste-water that has been in the rotor discharges. When the piston-valve r.; is in the position shown in Fig. 2, the port is closed. When the piston-valve is lowered, the port 24 is open to establish communication from the motor-cylinder 1 to the waste-water-pipe S.` When the valve 23 is moved upward, so as to open the port 24 to the lower passage 25, communication will be established for the water-pressure in cylinder. y

The piston-valve 23 is attached to a stem 27, and said stein and valve may be drawn upward and entirely ont of the valve-case without moving any screw-cap or other part oi' the valve-case- The upper end of the stem 27 is provided with a head 28.

The means for shifting the valve 23 upward or downward consists of an arm 29, carried on the lever 9 and projecting sidewise therefrom, and a sleeve 30, carried by said arm 29 and connected to the head 28-of the valvestem 27. When the lever 9 tilts upward, the valve-stem 27 will be raised through the medium of the arm 29 and sleeve 30, which shifts the valve 23, so as to open communicapipe 7 to flow to the motor- IOO t'oinoveetherway tion from the water-pressure pipe 7 to the motor, and thereby slacken the cord 3 and close the damper.- When the beam or lever 9 tilts downward, the arm '29 will press the stemand valve 2 3' downward.

4It is to be understood that the' details of construction .of the parts that compose the' valve-case are such as to enable the valve 23 (up or down) with equal freedom. i v- The arm 29 has one end attached by a pivot 3l toa clevisj3'2, which isfitt'ed so as'to slide on thelever 9. A set-serew 33 on the bottom of thei/clevis impinges against the lever and clevis wherever it may be set-screw 34 isl on the arm'29, and the end of this screw impinges against the pivot l'and holds the arm in its proper position. The

outer end of the arm 29 is providedwithy aflat upper surface 35, and a pin V36 projects upward from the said ila-t surface near the end of' the arm29 to prevent the sleeve 30' from falling o'i the said arm when not in use.v

A'sleeve 30 tits over the arm 29' and is adaptf ed to move longitudinally on said arm'. This sleeve is provided with a Hat inner surface 37, which prevents it from turning on the arm 29. The under surface of the sleeve-30 is .provided with two downwardly and in;

wardly projecting anges 38, which take under the head 28 of the valve-stem 27, whereby when the arm 29 is raised or lowered. by the lever 9 the said stem, and consequently the valve 23, will be raised or lowered. By this the valve-case; a clevis' device which is cameans of connecting the valve-stem 27to the arm 29 it will be seen'that as the stem 27 is moved vertically the sleeve 3Q is free to automaticallyadjustitself longitudinally on the arm 29. i Y i N Vhen it is desired to take thevalve-sten1 out of the case 5, the set-screw 34 must be loosened to allowthe arm 29 to swingv side- `wise on its pivot 3l until the sleeve 30 is detached from the head 28, and then the valvestem 27`may be at once drawn out of the case'.

Having thus described my invention, what l'. In a damper-regulator, the combination of a lever operated by variations of the steampressure inl the boiler; a damper-motor o perated by water-pressure; ,a valve controlling the water passing to and from the dampermotor and having a stem which projects from set. A

tachedv to saidclevis'device and projecting sidewise therefrom; and a sleeve loosely mounted en the said arm'and connected to raised or lowered the said sleeve will automatically adjust itself longitudinally' on the said arm.

2'. In a damper-regulator, the combination `from the damper-motor and having a stem `.-which projects from the valve-case; an' arm isecured to the said leverand projecting sidewise therefrom; and a sleeve loosely mounted '.on the said arm .and connected to the valvej ust itself longitudinal-ly on the said a'rin.

In a damper-regulator, the combination of a lever operated'by variations of steamy ated by water-pressure; a valve controlling motor and having'a stem which projects lfrom the valve-case;j an arm' secured to the said a sleeve loosely mounted on the said arm and having two downwardly andv inwardly proval-ve-stem, whereby when the latter is moved of a lever operated by variations'of steamated by water-pressure; a `valve controlling the water passing. to and from the damper- NORMAN NEWNAN.

pable of sliding on the saidK lever; an arm at.

stem, whereby when the latter is raised or' lowered-the said sleeve willautomatically adthe water passing to. and from thedamper- 8o y .l

lever and projecting sidewise therefrom; `andl jecting flanges which Aengage the head of the4 -pressure in the boiler;l adamper-motor operthe valve-stem, whereby when'the latter is of a lever operated by variations of the steampressure iu the boiler; a damper-motor; a l valve controlling the water passing to and pressure inv the boiler; adamper-motor op'erup or down the said sleeve will automatically adj ust itself longitudinally on the' said arm. f

4. In a damper-regulator, the combination.

motor and having a stem which projects from loo'4 

